Cho các phát biểu sau: (a) Anđehit vừa có tính oxi hóa vừa có tính khử. (b) Phenol tham gia phản ứng thế brom khó hơn benzen. (c) Anđehit tác dụng với H₂ (dư) có xúc tác Ni đun nóng, thu được ancol bậc một. (d) Dung dịch axit axetic tác dụng được với Cu(OH)₂. (e) Dung dịch phenol trong nước làm quỳ tím hóa đỏ. (g) Trong công nghiệp, axeton dược sản xuất từ cumen. Phát biểu đúng là:

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  By the time he arrives everything _____________.
   

   

• Choose the best answer for the following sentence:

  Not all necessary things ___________ for our trip that's why the departure ____________.

   

• Choose the best answer for the following sentence:

  The money ___________ to him two months ago, but it ____________ back yet.
   

• Choose the best answer for the following sentence:

  The business day was in high gear: the mail _________, documents were being typed, letters _________, talks ____________.
   

• Choose the best answer for the following sentence:

  On Friday afternoon before a three-day holiday weekend, the highways __________ people on their way out of the city.
   

• Choose the best answer for the following sentence:

  It's hard to believe that my application for a scholarship ____________. I was sure I'd get it. I don't know now if I'll go to school next year.
   

• Choose the best answer for the following sentence:

  The man died because medical help was not summoned. A doctor should _______________ immediately.
   

• Choose the best answer for the following sentence:

  "Can't we do something about the situation?''

   “Something _________ right now.”
   

• Choose the best answer for the following sentence:

  “Are you interested in scuba diving?”

  ''Very. Undersea life is ______________."
  
  

• Choose the best answer for the following sentence:

  The university ____________ by private funds as well as by tuition income and grants.